Weak corrections to Higgs hadroproduction in association with a top-quark pair

By Stefano Frixione, Valentin Hirschi, D. Pagani, Hua-Sheng Shao, M. Zaro. 2014

143 citations recorded by the source corpus.

A bstractWe present the calculation of the next-to-leading contribution of order αS2α2 to the production of a Standard Model Higgs boson in association with a top-quark pair at hadron colliders. All effects of weak and QCD origin are included, whereas those of QED origin are ignored. We work in the MadGraph5_aMC@NLO framework, and discuss sample phenomenological applications at a 8, 13, and 100 TeV pp collider, including the effects of the dominant next-to-leading QCD corrections of order αS3α.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/aa273258f61f20002f732a1c3357842dc0bd4acb

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In Nuclear and High Energy Physics

Citations in the corpus

Physics at a 100 TeV pp collider: Higgs and EW symmetry breaking studies (2016, methodology): “Theoretical calculations have been completed including NLO QCD [129,130] and EW [131] corrections.”
Les Houches 2015: Physics at TeV Colliders Standard Model Working Group Report (2016, methodology): “pT [150, 250] p V T [150, 250] p V T [150, 250]”
Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons (2015, methodology): “[31] for more details) but rather consistent with what has been used in the literature so far.”
Les Houches 2017: Physics at TeV Colliders Standard Model Working Group Report (2017, methodology): “This allowed the computation of the EW corrections to the process tt̄+ H/Z/W± [279,280], and of the complete set of mixed-order NLO corrections to dijet [288], tt̄W± and tt̄tt̄ [388].”
The automation of next-to-leading order electroweak calculations (2018, background): “Full agreement with our previous results [22, 25] is found, which constitutes a further cross check of the full automation of the mixed-coupling expansion achieved in the current version of MG5 aMC.”
Large NLO corrections in tt¯ W ± and tt¯ tt¯ hadroproduction from supposedly subleading EW contributions (2018, background): “[17], this classification of terms entering at a given order is not well defined; some diagrams can be viewed both as a “QCD correction” and an “EW correction” to different tree-level diagrams.”
Evidence for Higgs boson decay to a pair of muons (2020, methodology): “The cross section of Higgs boson production in the VBF [49] and qq → VH [50] modes is calculated at next-to-NLO (NNLO) in QCD, including NLO EW corrections, while the ttH cross section is computed at NLO in QCD and EW theory [51, 52].”
NLO electroweak automation and precise predictions for W + multijet production at the LHC (2014, methodology): “Important steps towards the automation of NLO EW corrections have been undertaken also within the Madgraph5 aMC@NLO framework [41, 42] and by the GoSam [43] collaboration.”
Higgs Physics at the HL-LHC and HE-LHC (2019, methodology): “tt̄H predictions include NLO QCD [70, 71, 72, 73, 74, 75, 76] and NLO QCD+EW corrections [75, 77, 76], while tH + t̄H predictions are accurate at NLO QCD only [78].”
Top-pair production at the LHC through NNLO QCD and NLO EW (2017, methodology): “The notation matches the one introduced in [53].”
Collier: A fortran-based complex one-loop library in extended regularizations (2016, methodology): “Electroweak NLO corrections, whose automation for multi-leg computations started with the development of the recursive generator Recola [16], have recently been implemented also in MadGraph5 aMC@NLO [17, 18] and OpenLoops [19, 20].”
Collider physics at the precision frontier (2020, methodology): “[236], they have been combined wit NLO QCD corrections within the narrow-width-approximation (NWA) for top-quark decays in Refs.”